B-Line Eaton series imperial cable tray and ladder, 4" Height, 12.38" Length, 24" Width, 24" and 9" Tray widths, Series 2-5 straight reducer, Aluminum

It is the transition piece that takes a 24 inch wide tray down to a 9 inch wide tray in a straight line, keeping both trays on the same centerline. The 4 inch side rail height carries through, so the run steps down in width only, not in depth. Overall length of the fitting is 12.38 inches.

Use the straight version when both trays share a common centerline and you want the width change balanced on each side. If the run has to keep one side rail in a continuous line, for example against a wall or following a structural member, a left-hand or right-hand reducer is the fitting for that instead. The 4A-24-SR09 is the straight type, 24 inch to 9 inch.

Order Eaton B-Line 4A-24-SR09. The number reads out as 4 inch depth, aluminum, 24 inch nominal width, straight reducer to 9 inches.

3.5 pounds. It is aluminum, so a single installer can hold it in place at the splice while the connector bolts go in, without rigging or a second set of hands.

Aluminum tray is the usual pick where weight and corrosion resistance matter, such as damp or coastal industrial runs, and it will not rust the way plain steel does. Keeping the whole run in the same aluminum material also keeps the bonding path consistent across the reducer rather than mixing dissimilar metals at the splice.